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Reports overloaded methods that take functional interfaces with conflicting abstract method signatures.
<p>Such overloads introduce ambiguity and require callers to cast lambdas to a specific type or specify lambda parameter types explicitly.
  It is preferable to give the overloaded methods different names to eliminate ambiguity.</p>
<p>Example:</p>
<pre><code>
  interface MyExecutor {
    void execute(Supplier&lt;?&gt; supplier);
    void execute(Callable&lt;?&gt; callable);
  }
</code></pre>
<p>
Here, <code>Supplier</code> and <code>Callable</code> are functional interfaces
whose single abstract methods do not take any parameters and return a non-void value.
As a result, the type of the lambda cannot be inferred at the call site unless an explicit cast is used.
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